Rotary valve shaft



FIG. 1 is a top plan view of a rotary valve shaft showing my new design;

FIG. 2 is a bottom view thereof;

FIG. 3 is a front elevational view thereof, the rear being a mirrorimage of the front shown;

FIG. 4 is a left end elevational view thereof;

FIG. 5 is a right end elevational view thereof; and

FIG. 6 is a cross sectional view taken on line 6--6 of FIG. 1.

The ornamental design of a rotary valve shaft, as shown and described.